Drapery hanger segregating and aligning apparatus



" Filed Oct. 8, 1956 Nov. 17, 1959- M. A. SALTZ 2,913,099

DRAPERY HANGER SEGREGATINd AND ALIGNING APPARATUS 3 Sheets-Sheet 1INVENTOR.

Maae/sfl. $194 rz A 770 A/[M Nov. 17, 1959 M. A. SAL'i'Z 2,913,099

DRAPERY HANGER SEGREGATING AND ALIGNING APPARATUS Filed Oct. a; 1956 sSheets-Sheet 2 31 3e a! as INVENTOR.

lIlllIlI/IIIIII" VIIIIIIII M. A. SALTZ Nov. 17, 1959 DRAPERY HANGERSEGREGATING AND ALIGNING APPARATUS Filed Oct. a, 1956 s Sheets-Shget s',7 JNVENTOR. Maze/.919. 5 94 72 IlllllfI/llrlllll United States PatentDRAPERY HANGER SEGREGATING AND ALIGNING APPARATUS Morris A. Saltz, LosAngeles, Calif. Application October 8, 1956, Serial No. 614,574 13Claims. (Cl. 198--33) The present invention relates to apparatus forsegregating and aligning drapery hangers or hooks, and similar articles.

Drapery hangers are generally made in the form of a one-piece membershaped from a single length of metal wire or other suitable material, toprovide a bottom opening hook member which is adapted to engage adrapery rod or a slide thereon, and an upwardly extending draperyattaching member such as a pin which is adapted to penetrate and supportthe drapery. Such hangers, generally called drapery hooks or draperypins, are generally manufactured by high-speed automatic machinery ingreat numbers. They are then sold or supplied to the consumer inpackages containing a desired number of hangers per package. In order tosimplify packaging, and at the same time permit uniform and compactarrangement of the hangers in the package, it is desirable to segregateand suitably align the hangers prior to packaging.

It is therefore a principal object of the present invention to providean apparatus forthe segregation of drapery hangers and the like, frombulk quantities thereof.

It is another object of the present invention to provide an apparatusfor aligning drapery hangers or hooks in a parallel manner prior to thepackaging thereof.

It is a further object of the invention to provide an apparatus forsegregating drapery hangers and aligning them with the rod engaging hookportion and the drapery engaging portion of each positioned parallel toand extending in the same direction as corresponding elements of otherdrapery hangers.

It is an additional object of the invention to provide an apparatuswhich will align a plurality of drapery hooks with their hooks anddrapery engaging pin portions extending in the same direction and in thesame vertiacl plane.

A still further object of the present invention is to provide anapparatus for separating individual drapery hooks from a bulk massthereof, and aligning each of them in a parallel manner to permitselection of such hooks in groups of any desired number for simplifiedand compact packaging thereof.

This invention possesses many other advantages, and has other objectswhich maybe made more clearly apparent from a consideration of specificembodiments thereof. These are shown in the drawings accompanying andforming part of the present specifications. These embodiments will nowbe described in detail, for the purpose of illustrating the generalprinciples of invention; but it is to be understood that such detaileddescription is not to be considered in a limiting sense, since the scopeof the invention is best defined by the appended claims.

Referring to the drawings:

Figure 1 is a side elevational view in partial vertical transversecross-section of an apparatus embodying the invention.

Fig. 2 is a vertical transverse cross-sectional view taken along lines2-2 of Fig. 1, illustrating the material separating portion of theapparatus.

Fig. 3 is an enlarged transverse view, partly in elevation and partly incross-section, taken along lines 33 of Fig. 1, illustrating the meansfor feeding separated pins to the aligning member.

Fig. 4 is an enlarged transverse vertical view, partly in cross-sectionand partly in elevation, taken along lines 44 of Fig. 3, illustrating ingreater detail the means for feeding separated pins to the aligningmember, and the alignment thereof on said member.

Fig. 5 is a transverse cross-sectional view taken along lines 5-5 ofFig. 4, showing a feeding trough and the position of a separated pintherein.

Fig. 6 is a vertical transverse view 'of a portion of Fig. 4, partly incross-section, taken along lines 6-6 illustrating the position of a pinupon the aligning mem Fig. 7 is a side elevational view, partly invertical cross-section, illustrating a modified form of the invention.

Fig. 8 is a view in horizontal elevation taken along lines 8-8 of Fig.7, illustrating a modified type of aligning element.

Fig. 9 is a vertical view, partly in transverse crosssection and partlyin elevation, taken along lines 9-9, of Fig. 7 further illustrating thealigning element shown in Fig. 8.

Fig. 10 is a transverse vertical cross-section taken along lines 10-10of Fig. 8. I

Fig. 11 is a transverse view, partly in cross-section and partly inelevation, taken along lines 11-11 of Fig. 8. Y

The apparatus illustrated in the drawings is designed to continuously orintermittently receive a quantity'of drapery hangers from an outsidesource of supply, separate them into one or more streams of individualhangers, and supply these individually and separately to aligning meanswhich will arrange them in the desired parallel position with the pinand hook portions in the desired alignment preparatory to removal fromthe apparatus and packaging. As specifically shown in Figs. 1 to 6,inclusive, a receptacle -10 having a bottom, and side and end walls andan open top, is provided. Rotatable drum 11 is positioned Within thereceptacle and is journaled on bearings 12 and 13 which are positionedin opposite end walls of receptacle 10. The feed hopper 14 is mounted atone end of the receptable in such a manner that drapery pins introducedinto the hopper will drop into the rotat-' able drum through spout 15.The drum is rotated by means of a suitable driving mechanism which, asillustrated in Fig. 1, consists of a pulley driven by V-belt 17 throughanotherpulley 18. As shown in Figs.

19b, 19c and width just suflicient to permit the passage of the draperyhooks therethrough. When the drum is rotated, the dra-' pery pins willdrop edgewise through the slots onto the bottom 20 of the receptacle.The bottom of the receptacle is provided with a series of longitudinallyspacedexit openings, as illustrated at 21 and 21a. The number of theseopenings will depend upon the length of thereceptacle and of therotatable drum but, for purposes pin to pass through when the pin isaligned with its longitudinal axis in line with the opening as shown inmounted on the shaft of motor, 1 and 2, the rotatable drum is providedwith a desired number of longitudinal slots 19b, 19d. These slots aredesigned to have a.

Fig. 3. Curved partitions, as shown for example at 22 and 22a, areprovided within the receptacle and are so arranged so as to providetapering inlet grooves leading to the openings. Attached to each openingis a trough, as shown at 23 and 23a, each of said troughs having a widthequal to the width of the opening and being provided with depending lipportions 24 and 24a. Receptacle is mounted for lateral vibratory motionupon supports 25 and 26, with a vibrator 27 being mounted upon support25. The vibrator imparts a lateral or horizontal reciprocatory, orvibrational movement to the receptacle which serves to urge the pinswhich have fallen to the bottom of the receptacle forward into theopenings in the bottom of the receptacle and then into the individualtroughs so that they will be fed through said troughs in a spacedmanner, as illustrated in Fig. 3. The supports for the receptacle may bemounted on cushions of rubber or other resilient material to permit acertain degree of movement during operation of the vibrator.

Positioned in alignment with the depending lip portion of each trough isa track, as illustrated at 28 and 23a. Each of said tracks is formed ofan elongated metal sheet or strip positioned vertically with the narrowedge in alignment with the center of the trough. Each track is formedwith an upwardly curved portion 29 which presents an edge portion 30overlying and opposed to the downward extending lip of the trough. Thehooks are collected upon a downwardly inclined portion 35, of the track.

As will be seen from Fig. 3, the drapery pins will tend to flow throughthe trough with the pin and hook portions in a number of difierentpossible positions, as shown at 31, 3Q, 33 and 34. As the pins drop fromthe trough, if the open hook portion of the pin is opposed to the edgeof the track it will engage, or fall onto and loop over the opposed edge29 of the track being guided into position by the curved structure ofthe track. 011 the other hand, if the closed portion of the hook isopposed to the track with the pin portion facing the track as shown, forexample, in Fig. 4 in the case of pin 31, the pin will fall intosuccessive positions 31a, 31b and 310 being guided by the curved portionof the track as shown so that the pin will fall forward and drop withthe open portion of the hook looped over the track. Therefore,regardless of the relative position of the hook or point portions ofeach pin, the loop of the hook of each will engage the track and looparound it, as shown for example in Fig. 6. As a result, all of the pinswill beoome aligned parallel to each other with the hooked portionsengaging the edge of the track and the pin portions pointing upward. Ofcourse, with this arrangement, certain of the pins will be arranged withthe points on one side of the track and others with the points on theother side of the track. However, the parallel alignment of the pinswith the hooked portions all extending in one direction and the pointedportions in the opposite direction permits removal of the pins in groupsfrom the track for packaging with the pins in this desirable position.

A modified form of the apparatus is illustrated in Figs. 7 to 9inclusive. Receptacle 36 is provided with rotatable drum .37 which isrotated by a motor driven belt and pulley arrangement, as shown, and ismounted in a manner similar to that described in Figs. 1 and 2. Afeeding trough 38 is positioned in a manner similar to that illustratedin Fig. 2. The drum is Provided with elongated slots 39a, 39b, 39c and39a. One or more exit openings 40 leading into troughs 41 are provided,each trough having depending lip portions 42. The receptacle is mountedfor vibratory motion on supports 43 and 44 and is vibrated by means of avibrator 45, in the manner described in connection with Fig, 1 Thedrapery. pins drop to the bottom of the receptacle and how,- through theexit troughs in the manner described above. Up to. this point,construction and action of the apparatus is substantially identical withthat d s ibedabove in connection with Figs. 1 to 3. In thismodification, however, the receiving tracks, which are opposed to theexit portions of the troughs, are formed in two separate sections. Thefirst section of the track 46 comprises a narrow sheet member having acurved cut-out portion 47 with its edge opposed to the end of the troughand having an overhanging portion 48, similar to the construction shownin Figs. 1 to 4. However, this section of the track is provided with anextension 49 which slopes downward and curves in a direction at rightangles to the angle of the edge which is opposed to the trough in orderthat as the pins slide down the edge of the track, a ninety degreechange in the angular position of each pin will take place. This isillustrated in greater detail in Figs. 8 and 9. As has been described inconnection with Figs. 1 to 6 inclusive, the pins at this stage are allaligned with their hooked portions engaging the top edge of the trackand with their pointed portions positioned on one side or the other ofthe track. Adjacent the end of the curved track is positioned a screw 59mounted on shaft 51 and rotated by a belt 52. and pulley 53, driven by apulley mounted on the shaft of the same motor which rotates drum 33. Ofcourse, a separate drive may be provided, if desired. The second sectionof track 54 is positioned in an edgewise relationship and at rightangles to the curved portion 49 of track 46 and beneath the end of thetrack in order to receive pins which drop from the first section of thetrack. Screw 53 is positioned so that it will be aligned with and engagethe top of the hooked portion of the pin which is looped over the trackat the end of the extension 49 thereof. Track 54 is provided with anextension or continuation 54a which is formed with a right angled turnand extends for a short distance parallel to and slightly lower thanextension 49 of track section 46. This is shown most clearly in Figs. 8,l0 and ll. This continuation of 54 is also formed with a downwardlysloping or beveled end portion 54b which curves slightly to parallel thecurve of 49, as shown in Fig. 8. As referred to above, certain of thehooks will descend the first section of track and slide toward the endof track portion 49 with their open hook portions looped over the trackwith their upwardly extending pins positioned to the right of the track,while others will do so with their pin portions positioned to the leftof the track, all of the hooks being positioned with the pin portions onone side or the other of the track. Referring to Figs. 8, 9 and 10, thedisposition of hooks with their pin portions atthe right of the track,looking toward the end, is illustrated. Pin 55, having loop portion 56and pin portion 57, has descended the: track toward the end of section49', as it does so the depending end 58 of the hook will clear the endof track section 54a due to the downward taper of its beveled end 54b.The end of the loop 58 will then overlie the track extension 54a withthe top of the loop engaging track portion 49. in this position the topportion 56 of the loop will descend into engagement with screw 59. Asthe screw rotates. the pin will be drawn forward, as shown in Figs. 8and 9, until it drops from the end of 49 onto track 54. Since the end ofthe loop already overlies this section of track, it will drop with theloop in the same position and will continue down the track with its pinportion positioned to the right of the track. The same action will occurwith all other pins which descend the track in a similar position.

With respect to those hooks in which the pin portion is positioned atthe left of track 46 as they descend, reference may be had to Figs. 8and 11. Hook 59 has descended track 46 and is positioned with its loopportion 62 in engagement with track extension 49 and with its upwardlyextending pin portion 60 at the left of the extension and the downwardlyextending end of the loop 63 at the. right. As it descends toward theend of 49, its bottom end portion 61 is positioned between 49 and endportion 54a of track section 54, which is parallel to 49 and positionedslightly lower. The space between 54a and 49 is preferably slightly lessthan the width of the bottom portion of the pin so that as it passesbetween the two track sections the pin portion will bear against theside of 54a with the result that the right side of the pin, which isfree, will turn forward a little so that the pin will move forward at aslight angle to the horizontal. Top portion 62 then engages screw 50 andis drawn forward to the end of track section as the screw rotates. Indoing so, the pin portion, which is in engagement with the side of trackextension 54a, acts as a fulcrum so that as the pin is drawn forward byscrew 50 in engagement with top portion 62 thereof it will turn slightlyin a horizontal plane with arm 63 rotating into position over the rightside of track 54 as the pin drops from the end of 49. When dependingportion 61 encounters the right angle turn 64 in track 54, the forwardmovement of the pin will stop and the rotary action will continue untilthe loop is at right angles to and above the track, at which point thepin will drop onto track portion 54. Due to the downward slope of track49 at this point, the end of 63 will clear the track as it is rotatedinto position. As a result, pin 59 and all others having a like positionwill drop onto and engage track 54 with their loop portions and pinportions in the .identical positions as the other pins referred to abovein connection with Fig. 10. In this manner all the pins will be alignedin identical positions with the upwardly extending pin portions and therespective hook portions all side by side and in the same planes. Therespective hooks then continue to slide down the inclined extension ofthe track 58, from which they are removed in the same position forpackaging. Removal of the pins from the track, to be packaged, may beaccomplished either mechanically or manually.

It is apparent from the foregoing description that an apparatus has beenprovided which is capable of automatically and continuously separatingindividual drapery hangers or hooks from a mass quantity thereof andseparately and individually positioning them in an aligned manner withthe loop or hook portions and the pin portions in respectivelyside-by-side relationship in order to permit selection and packaging thehooks in such a position. It is also apparent that a modified form ofapparatus has been provided which will enable separation and alignmentof such drapery hooks or hangers with respective pin and hook portionsof each in the same relative position as to permit selection andpackaging of such hooks in the same arrangement. The packages in whichthe pins are placed are so designed and shaped that the pins areretained in the same relation to each other as when aligned by thisapparatus so that when removed for use the respective pin and hookportions of each will be in the same positions. Through use of theapparatus as described above the drapery hangers are so positioned inthe package that they may be readily selected for use by the consumer inthe proper positions, or where such hooks are to be supplied toautomatic drapery hook inserting equipment they will be in the properpositions for feeding to such equipment.

Although the foregoing description has referred specifically to draperypins, the invention is applicable to other types of hooks or hangerseither of the pin type or to those types which are attached by sewing,stapling or by other means.

The inventor claims:

1. Apparatus for separating and aligning drapery h angers having an openloop portion and a pin portion which comprises a receptacle having adownwardly inclining bottom portion, a rotary drum positioned withinsaid receptacle, means for feeding drapery hangers into said drum, aplurality of openings in said drum having dimensions sufficient topermit individual hangers to drop therefrom into the bottom of saidreceptacle, means for rotating said drum, at least one exit troughextending from the bottom of the receptacle, each said trough having awidth just sufficient to accommodate a single hanger, said trough havingan inclined bottom extending from said receptacle bottom, the forwardportion of said trough bottom at the outlet end of said trough having asubstantially greater inclination than the portion of said trough bottomadjacent to and rearwardly thereof, means for imparting lateralvibratory motion to said receptacle whereby successive hangers will passthrough each said trough, a relatively narrow track having one endpositioned beneath and adjacent to the outlet end of each of saidtroughs and inclined downwardly from said outlet end in a reversedirection to the direction of inclination of said trough bottom, saidtrack having a width less than the loop portion of the said hangers,whereby said loop portion will engage said track as it leaves saidtrough, thereby aligning each successive hanger with its loop portioninengagement with said track.

2. Apparatus for segregating and aligning drapery hangers and the like,such hangers being formed with a downwardly hooked portion and anupwardly extending pin portion which comprises a rotary drum, a feedhopper having an opening leading into said drum for supplying saidhangers in bulk thereto, a plurality of spaced elongated slots in thewalls of said drum, said slots having a width just sufiicient to allowindividual hangers to drop therefrom, a receptacle within which saiddrum is positioned, said receptacle having a downwardly inclined bottomportion, means for rotating said drum within said receptacle whereinindividual hangers will drop through said slots to the bottom of saidreceptacle, a plunality of exit troughs communicating with and extendingfrom the lowest portion of the inclined bottom of said receptacle, eachof said troughs having a width just sufficient to permit individualhangers to pass therethrough, each of said troughs having an inclinedbottom extending from said receptacle bottom, the forward portion ofsaid trough bottom and the outlet end of said trough having asubstantially greater inclination than the portion of said trough bottomadjacent to and rearwardly thereof means for laterally vibrating thebottom of said receptacle whereby said hangers are urged along theinclined bottom of said receptacle and out through said troughs, arelatively narrow downwardly inclined track having a width less than thewidth of the hangers positioned with its upper edge surface adjacent tobut spaced from each of said trough outlet ends and inclined downwardlyfrom said outlet end in a reverse direction to the direction ofinclination of said trough bottom, and positioned to engage the insideof each loop to receive individual hangers as they pass from saidtrough, the loops of each of said hangers thereby encompassing the upperedge of the track'and becoming parallelly' aligned with the pin portionsof each extending upward.

3. Apparatus for aligning drapery hangers which include a loop hookportion which comprises a first track member, means for positioning saidhangers upon said first track member with the loop portions positionedover said track and the pin portion extending upwardly upon either sideof said track, a second track member posit tioned adjacent to the end ofsaid first track member, and means for drawing successive hangers fromsaid first track member with the loop portions thereof in the same planeand into engagement with said second track member, whereby the loopportion of each hanger will engage said track in the same relativeposition.

4. Apparatus according to claim 3 wherein the first track member isinclined to permit the hangers to slide downwardly thereon to an endportion thereof, and wherein means are provided adjacent said'endportion e11- gaging successive hangers and drawing them with the loopportion of each in the same relative position into engagement with saidsecond track member.

5. Apparatus according to claim 4 wherein said first track member curvesat a ninety degree angle whereby the plane of each hanger is turnedninety degrees as it descends the track to the end portion thereof, andwherein said second track member extends at a ninety degree angle to theend portion of said first track member.

6. Apparatus for aligning drapery hangers which include a loop hookmember and a drapery attaching member, which comprises a first trackmember positioned to receive successive hangers from a feeding meansadapted to position said hangers with said loop hook members engagingsaid track, said first track member being inclined downwardly andcurving at an angle of ninety degrees from the hanger receiving portionthereof and terminating in a substantially horizontal end portionadapted to receive said hangers as they slide down said first trackmember, a second downwardly inclined track member positioned beneath thesaid end portion of said first track member and extending at rightangles thereto, and conveying means positioned adjacent to said endportion engaging successive hangers, said conveying means adapted torotate each of said hangers so that the loop portion of each is in thesame position over the end of said second track member whereby saidhangers will engage said second track with said loop portionsencompassing it as they are drawn from the end of said first trackmember.

7, Apparatus according to claim 6 wherein said conveying means is ahorizontally positioned screw the grooves of which engage the top of theloop portion of each hanger and wherein the drapery attaching portion ofeach successive hanger is drawn into engagement with the side of saidsecond track as it is drawn forward by said screw member thereby causingrotation of the loop portion of said hanger about the axis of saiddrapery attaching portion prior to dropping upon said second trackmember.

8. Apparatus for aligning drapery hangers which include a bottom openinghook member and an upwardly extending drapery attaching member, whichcomprises a first track member positioned to receive successive hangersfrom a feeding means adapted to position said hangers with said loophook members engaging said track and with said upwardly extendingdrapery attaching members positioned at one side or the other of saidtrack, said first track member being inclined downwardly and terminatingin an end portion adapted to receive said hangers as they slide downsaid first track member, a second downwardly inclined track memberpositioned beneath said end portion of said first track member andextending at substantially right angles thereto, the plane of saidsecond track member intersecting the plane of said first track membernear the end thereof, and said second track member having an end sectionextending parallel to and spaced from one side of the end portion of thefirst track member whereby certain of said hangers will be received atthe end of said first track member with their upwardly extending draperyattaching members positioned between the end of the first track memberand the end of the second track member which is parallel thereto andwill engage said second tnack member at the point of intersection, andconveying means positioned adjacent to the end portion of the firsttrack member adapted to engage the loop portions of successive hangersand convey said hangers from the end of the first track member to theend of said second track member, whereby the hangers with upwardlyextending attaching members will engage the second track member uponbeing conveyed to the end of the first track member thereby causingrotation thereof about said attaching member as a fulcrum to causeengagement of the hanger with said second track member with saidattaching member positioned along the side of said track member which isopposite to its initial position on said first track member.

9. Apparatus for separating and aligning drapery hangers having an openloop hook portion and a dvapery attaching portion, which comprises areceptacle having a bottom inclined downwardly in the direction offeeding of hangers deposited thereon, a trough having an inclined bottomforming a continuation of said receptacle bottom,

the forward portion of said trough bottom at the outlet end of saidtrough having a substantially greater inclination than the portion ofsaid trough bottom adjacent to and rearwardly thereof, said'troughhaving sides extending upwardly from said bottom and spaced apart adistance corresponding to the width of a hanger said sides divergingfrom each other in a direction toward said receptacle bottom to providea tapered inlet for the hangers from said receptacle into said trough, arelatively narrow track disposed under said trough and extending in adownward direction from the outlet of said trough, and means forvibrating said receptacle and trough to feed hangers from saidreceptacle bottom into and along said trough to said trough outlet wherethey will drop onto said track with the loop hook portions engaging saidtrack.

10. Apparatus for separating and aligning drapery hooks having an openloop hook portion and a drapery attaching portion, comprising a troughadapted to receive hooks and having a bottom inclined in a downwarddirection toward the outlet end of said trough, the forward portion ofsaid bottom at said outlet end having a substantially greaterinclination than the portion of said trough bottom adjacent to andrearwardly thereof, a relatively narrow track disposed under said troughand inclined downwardly from the outlet of said trough in a reversedirection to the direction of inclination of said trough bottom, andmeans for feeding hooks along said trough bottom onto its forwardportion from where they will drop onto said track with the loop hookportions engaging said track.

11. Apparatus for separating and aligning drapery hooks having an openloop hook portion and a drapery attaching portion, comprising a troughadapted to receive hooks and having a bottom inclined in a downwarddirection toward the outlet end of said trough, the forward portion ofsaid bottom at said outlet end having a substantially greaterinclination than the portion of said trough bottom adjacent to andreaiwardly thereof, a relatively narrow track disposed under said troughand in clined downwardly from the outlet of said trough in a reversedirection to the direction of inclination of said trough bottom, theupper portion of said track extending over said forward portion of saidtrough bottom, and means for feeding hooks along said trough bottom ontoits forward portion from where they will drop onto said track with theloop hook portions engaging said track.

12. Apparatus for separating and aligning drapery hangers having an openloop hook portion and a drapery attaching portion, which comprises areceptacle having a bottom inclined downwardly in the direction offeeding of hangers deposited thereon, a trough having an inclined bottomforming a continuation of said receptacle bottom, the forward portion ofsaid trough bottom at the outlet end of said trough having asubstantially greater inclination than the portion of said trough bottomadjacent to and rearwardly thereof, said trough having sides extendingupwardly from said bottom and spaced apart a distance corresponding tothe width of a hanger, said sides diverging from each other in adirection toward said receptacle bottom to provide a tapered inlet forthe hangers from said receptacle into said trough, 'a relatively narrowtrack disposed under said trough and extending in a downward directionfrom the outlet of said trough, the upper portion of said trackextending over said forward portion of the trough bottom, and means forvibrating said receptacle and trough to feed hangers from saidreceptacle bottom into and along said trough to said trough outlet wherethey will drop onto said track with the loop hook portions engaging saidtrack.

13. Apparatus for aligning drapery hangers which include a loop hookportion which comprises a first track member, means for positioning saidhangers upon said first track member with the loop portions positionedover said track and the pin portion extending upwardly from 9 10 eitherside of said track, a second track member posi- References Cited in thefile of this patent tioned adjacent to the end of said first trackmember, and means for transferring successive hangers having the UNITEDSTATES PATENTS loop portions thereof in the same plane into engagement672,330 Peck Apr. 16, 1901 with said second track member, whereby allhangers will 5 1,326,925 Goldberg Ian. 26, 1920 be disposed on saidsecond track member with their loop 1,445,296 Clark Feb. 13, 1923portions arranged in the same direction. 2,667,797 Buenger Feb. 2, 1954

